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Rok 2025
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Predicting creep failure life in adhesive-bonded single-lap joints using machine learning
PublikacjaAccurately predicting the creep failure life of adhesive joints, particularly single-lap adhesive joints (SLAJs), remains still a significant challenge, requiring substantial time and resources and the ability to predict the duration of creep failure in SLAJs is critical to ensuring structural integrity and reducing the failure of creep-prone adhesive joints. In this study, machine learning (ML) was used to identify the critical...
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Preliminary prediction of the increase in flood hazard from wind surges for the city of Elbląg due to climate change
PublikacjaThis study investigates the potential increase in flood hazard in the city of Elbląg, Poland, due to climate-induced intensification of wind surges in the Vistula Lagoon. Using the HEC-RAS 2D (version 6.6) model—typically applied to riverine systems but here adapted for wind-driven lagoon dynamics—we simulate both historical and hypothetical storm events to evaluate water level changes under varying wind speeds. Model validation...
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Prestressing of concrete using iron-based shape memory alloy (Fe-SMA) short fibers: Experimental and numerical analysis
PublikacjaIron-based shape memory alloys (Fe-SMAs) exhibit unique shape recovery and memory effect behavior upon thermal activation, making them advantageous for structural applications such as prestressing. Introducing short Fe-SMA fibers into concrete structures allows for a uniform and localized distribution of prestressing forces within...
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Probiotic potential of Bacillus Isolates from Polish Bee Pollen and Bee Bread
PublikacjaThe main goal of this study was the evaluation of the probiotic potential of 10 Bacillus spp. strains isolated from 5 bee bread and 3 bee pollen samples. The antagonistic interaction with Staphylococcus aureus and Escherichia coli was a primary criterion for the preliminary selection of the isolates. Three out of ten strains—PY2.3 (isolated from pollen), BP20.15 and BB10.1 (both isolated from bee bread)—were found to be possible...
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Procedury reagowania na atak nożownika w obiektach handlowych firmy ochroniarskie
PublikacjaProcedury reagowania na atak nożownika w obiektach handlowych wytyczne dla firm ochroniarskich Ataki...
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Progress in devulcanization of waste tire rubber: Upcycling towards a circular economy
PublikacjaAs a complex composite material, tire rubber has always presented significant environmental and waste management concerns due to its non-biodegradability and accumulation in landfills. The devulcanization of tire rubber has emerged as a historical challenge in the field of sustainable rubber engineering since Goodyear invented cross-linking in 1839. This review provides a comprehensive analysis of waste tire recycling processes,...
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Projekt Integracji Służb i Partnerstwa dla Bezpieczeństwa Narodowego
PublikacjaW obliczu rosnących zagrożeń zarówno na arenie międzynarodowej, jak i wewnętrznej, współczesne...
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Pullout performance of innovative polymer vertical anchor plates in layered soils.
PublikacjaThis study explores the innovative use of polymer plate anchors in geotechnical engineering, addressing some of the limitations of traditional steel plate anchors. We investigated the performance of polymer vertical anchor plates in multi-layered cohesionless soils, focusing on the pullout capacity under various conditions. The research evaluated the effects of soil density, number of layers, and anchor embedment depth on the pullout...
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Quality Evaluation of Small Features Fabricated by Fused Filament Fabrication Method
PublikacjaThe purpose of this research was to evaluate the quality of small features fabricated by the fused filament fabrication (FFF) method. The samples containing circular and square cross-sections through holes with different dimensions, lengths, and orientation angles were printed from ABS (acrylonitrile butadiene styrene) filament. The adopted optical inspection method allowed us to conduct observations of individual features and...
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Rapid Global Antenna Design by Simplex Regressors and Multi-Resolution Simulations
PublikacjaOptimization methods have been rapidly entering the realm of antenna design over the last several years. Despite many available algorithms, practical optimization is demanding due to the high electromagnetic (EM) analysis cost necessary for dependable antenna assessment. This is particularly troublesome in global parameter tuning, routinely conducted using nature-inspired procedures. Unfortunately, these methods are known for their...
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RCS Enhancement of Millimeter Wave LTCC Van Atta Arrays With 3-D Printed Lenses for Chipless RFID Applications
PublikacjaIn this paper, we present a new method to enhance the radar- cross section (RCS) of Van Atta arrays which can be used in chipless radio-frequency identification tags operating in millimeter wave frequency bands. Small planar Low-Temperature Co-fired Ceramic (LTCC) Van Atta arrays, that are durable and can operate in harsh environments, are combined with 3-D printed lenses to increase or modify the shape of their RCS by up to 10...
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Recent Research Progress in the Abrasive Machining and Finishing of Additively Manufactured Metal Parts
PublikacjaAdditive manufacturing (AM) has revolutionized the production of complex geometrical parts with metals; however, the usual layer-by-layer deposition results in poor surface quality and unpredictable surface integrity. Abrasive machining and finishing techniques play vital roles in counteracting these challenges and qualifying AM parts for practical applications. This review aims to present recent research developments concerning...
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Red analytical performance index (RAPI) and software: the missing tool for assessing methods in terms of analytical performance
PublikacjaAlthough performing validation of an analytical method is a widely accepted standard, assessing and comparing the overall analytical potential covering all validation criteria is not straightforward. To answer the expectations of analytical chemists, we propose a new tool that solves this problem in a simple and user-friendly way. The Red Analytical Performance Index (RAPI) presented in this article is inspired by the Red-Green-Blue...
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Research on problem formulations in resource-aware problems across scientific domains and applications
PublikacjaIn this paper we conducted thorough analysis of research papers focused on resource aware problems and using one of the following formulations: integer linear programming (ILP), greedy algorithms (GrA), dynamic programming (DP), evolutionary algorithms (EA) and machine learning (ML). Basing on such general problem formulations we identified actual research tasks considered in many different domains. Furthermore, we analyzed each...
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Restrained differential of a graph
PublikacjaGiven a graph $G=(V(G), E(G))$ and a vertex $v\in V(G)$, the {open neighbourhood} of $v$ is defined to be $N(v)=\{u\in V(G) :\, uv\in E(G)\}$. The {external neighbourhood} of a set $S\subseteq V(G)$ is defined as $S_e=\left(\cup_{v\in S}N(v)\right)\setminus S$, while the \emph{restrained external neighbourhood} of $S$ is defined as $S_r=\{v\in S_e : N(v)\cap S_e\neq \varnothing\}$. The restrained differential of a graph $G$ is...
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Robust Laser‐Induced Graphene‐Boron‐Doped Diamond Nanowall Hybrid Nanostructures with Enhanced Field Electron Emission Performance for Microplasma Illumination Devices
PublikacjaThis investigation introduces a scalable fabrication method for laser-induced graphene (LIG)-boron-doped diamond nanowall (BDNW) hybrid nanostructures, designed for field electron emission (FEE) cathode materials in microplasma illumination (μPI) devices. The two-step process involves fabricating BDNWs via microwave plasma-enhanced chemical vapor deposition, followed by drop-casting BDNW dispersion onto polyimide foils to create...
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Rovibrational quenching calculations of C2− in collision with H2
PublikacjaThe molecular anion C2− has been of interest in the past few years as a candidate for laser cooling due to its electronic structure and favorable branching ratios to the ground electronic and vibrational states. Molecular hydrogen has been used by the Wester group at Innsbruck as a buffer gas to cool the molecule’s internal rovibrational motion. In the present work we generate a five-dimensional (5D) interaction potential for the...
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Rozporządzenia Ministra Edukacji Narodowej i Sportu z 31 grudnia 2002 r. w sprawie bezpieczeństwa i higieny w szkołach
PublikacjaBezpieczeństwo i higiena w środowisku szkolnym to jeden z kluczowych filarów funkcjonowania całego...
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SDN Controller for Optical Network Control
PublikacjaThe ability of centralized programming flow tables in switches and routers to perform programmable resource control and management from the central controller under the Software Defined Networking (SDN) concept has introduced a new approach to controlling and managing network resources. The main principles of the SDN concept, as defined by the Open Networking Foundation (ONF), apply primarily to packet networks, making the usage...
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Selecting an Applicable Cybersecurity Assessment Framework: Qualitative Metrics-Based Multiple-Factor Analysis
PublikacjaRecently, a survey of cybersecurity assessment methods focused on general characteristics was conducted. Among its major findings, it revealed the methods’ adoption issues. This paper presents a follow-up to the study. It provides an in-depth analysis of the methods’ adoption-related properties based on qualitative metrics. As a result, the proposals which demonstrate a higher adoption potential were identified. The methods are...
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Selecting an inverter for a PV micro-installation
PublikacjaThe article describes recommendations related to the optimal selection of inverters for PV micro-installations. It presents different types of inverters used in PV installations depending on their type and power. Regardless of the case, attention should be paid to the maximum voltage and input current of the device. However, the appropriate quality of the inverter and its compliance with applicable regulations, as evidenced by...
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Selection of the technology of repair works of concrete industrial floors in view of their degree of technical dysfunctions
PublikacjaConcrete floors are among the elements in construction facilities whose design requires engineering experience, workmanship requires the maintenance of a technological regime, while during their operation it is necessary to conduct periodic repairs. They are most often used as working and communication space in industrial facilities. Regardless of the place of installation, concrete...
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Selective light-activation of sensing regions in hybrid Au-graphene-TiO2 chemiresistive gas sensor
PublikacjaControlling the sensing activity of novel gas sensors is a desirable and simultaneously challenging issue. In this work, ink-printed graphene-based hybrid sensors are demonstrated, and the possibility of selective activation of gas-sensitive components with light is presented. Graphene flakes were mixed with TiO2 nanoparticles and decorated with Au nanoparticles to produce sensors of photocatalytic and plasmonic properties (Au-G-TiO2)....
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Self-Isolation in MIMO Array Using Mode Diversity
PublikacjaA new isolation technique is proposed for multiple-input multiple-output (MIMO) microstrip patch antenna (MPA) arrays utilizing mode’s diversity. Typically, similar modes are excited in each element of the MIMO array. However, the proposed MIMO array uses two elements of different sizes excited in distinct modes at the same frequency. It is found that the TM01 mode excited in one MPA, a hybrid mode (TM03+TM21) is induced in the...
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Self-testing tilted strategies for maximal loophole-free nonlocality
PublikacjaThe degree of experimentally attainable nonlocality, as gauged by the loophole-free or effective violation of Bell inequalities, remains severely limited due to inefficient detectors. We address an experimentally motivated question: Which quantum strategies attain the maximal loophole-free nonlocality in the presence of inefficient detectors? For any Bell inequality and any specification of detection efficiencies, the optimal strategies...
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Self-testing tilted strategies for maximal loophole-free nonlocality
PublikacjaThe degree of experimentally attainable nonlocality, as gauged by the loophole-free or effective violation of Bell inequalities, remains severely limited due to inefficient detectors. We address an experimentally motivated question: Which quantum strategies attain the maximal loophole-free nonlocality in the presence of inefficient detectors? For any Bell inequality and any specification of detection efficiencies, the optimal strategies...
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Sensing of NO2, NH3, and C3H6O by graphene-Si Schottky diode at chosen voltage biases
PublikacjaOur research aims to propose a selective gas sensor based on a single graphene-silicon Schottky junction. By polarizing the sensor with selected voltage, we move between different regions of its gas sensitivity dependent on the lighting conditions. Our results show that low detection limits (36 ppb for NO2, 238 ppb for NH3, and 640 ppb for C3H6O) are obtained under UV irradiation at -0.4 V; however, a light source power supply...
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Ship Magnetic Signature Classification Using GRU-Based Recurrent Neural Networks
PublikacjaMagnetic signatures represent the magnetic field generated by a ship’s ferromagnetic components and provide valuable information for identifying vessels not only in naval operations, but also in civil passages. The topic of accurate modelling of these signatures is relevant to this day, but also the complexity of the model necessary to accurately predict the ship’s magnetic field. This paper presents the implementation of a deep,...
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Side-on phosphinoboryl platinum(ii) complexes
PublikacjaThe oxidative addition of bromo(phosphino)boranes to platinum(0) compounds enabled the formation of platinum(II) complexes with unprecedented side-on coordination of the boryl ligand. The resulting complex underwent a reaction with carbon dioxide, leading to the insertion of a CO2 molecule into the B–P bond of the phosphinoboryl ligand.
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Slip Compensation Technique In Five-Phase Induction Motors Drive System
PublikacjaThe article presents a slip compensation method for traditional scalar (V/f) control of a five-phase induction motor. The proposed control method uses the possibility of injecting the third harmonic of voltage to increase the motor’s electromagnetic torque. The solution is characterized by both the simplicity of scalar control and improved speed control efficiency. The paper presents the PLECS simulation results and describes the...
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Sobol’ sensitivity analysis of a 1D stochastic elasto-plastic seismic wave propagation
PublikacjaA novel numerical framework for the Sobol’ sensitivity analysis of 1D stochastic elasto-plastic wave propagation is proposed and evaluated. The forward propagation of uncertain input motions through uncertain elasto-plastic soils and structures is often conducted using the finite element method (FEM) together with the Monte Carlo simulation. However, it is computationally much more efficient to use the stochastic elasto-plastic FEM...
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Solvent Selection as a Key Factor in the Performance of Semitransparent Heterojunctions Composed of Hydrogenated Nanotubes and Bismuth Sulfides
PublikacjaResearch on titanium nanotubes modified with metal sulfides, particularly bismuth sulfide (Bi2S3), aims to create heterostructures that efficiently absorb sunlight and then separate photogenerated charge carriers, thereby enhancing the energy conversion efficiency. This study shows a key role of solvent used for sulfide and bismuth salt solutions used during successive ionic layer adsorption and reaction (SILAR) onto the morphology,...
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Strategies toward Green Deal implementation in the context of SCG reuse and recovery in the circular economy model
PublikacjaThe article explores the future outlook on integrating and using a resource database for the recovery and reuse of coffee industry residues, focusing on economic and environmental perspectives within the Circular Economy Model (CEM). With the continuous rise in global coffee consumption, the production of Spent Coffee Grounds (SCG) has also surged worldwide, presenting significant opportunities for resource recovery and recycling....
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Structural Insights and Advanced Spectroscopic Characterization of Thiazolothiazoles: Unveiling Potential for Optoelectronic and Sensing Applications
PublikacjaThiazolothiazoles (TzTzs) are planar, π-conjugated heterocyclic compounds exhibiting unique structural and optoelectronic properties. In this study, a series of symmetrically substituted thiazolothiazole (TzTz) derivatives including imidazolyl, o-vanillyl, p-vanillyl, phenyl, thiazolyl, cinnamoyl, and trifluoromethylphenyl were synthesized and extensively characterized using X-ray crystallography (XRD), Fourier-transformed infrared...
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Surrogate modeling of passive microwave circuits using recurrent neural networks and domain confinement
PublikacjaElectromagnetic (EM) simulation is widespread in microwave engineering. EM tools ensure evaluation reliability but incur significant expenses. These can be mitigated by employing surrogate modeling methods, especially to expedite design workflows like local/global optimization or uncertainty quantification. However, building accurate surrogates is a daunting task beyond simple cases (low dimensionality, narrow geometry parameter...
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Sustainability, reliability, and durability of civil engineering structures
PublikacjaConsidering the Bulletin Readers’ interest in civil engineering,the Special Section “Sustainability, reliability, and durability of civil engineering structures” is now presented, with papers that, by studying specific cases, fully embrace all aspects related to the topic, starting from geometry design, determination of load acting on a structure, characteristics of the material for construction purpose, characteristics of structural...
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Sustainable Management of Microplastic Pollutions from PET Bottles: Overview and Mitigation Strategies
PublikacjaThe widespread use of polyethylene terephthalate (PET) in bottled water packaging remains significant and is expected to increase further in the coming years. This trend raises concerns due to the generation of large amounts of waste. The degradation of PET leads to the release of low-molecular-weight substances and microplastic particles, which contaminate food products and the environment. This work highlights the significance...
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Synteza amidowych, estrowych i bioizosterycznych pochodnych kwasu mykofenolowego jako związków o działaniu antyproliferacyjnym
PublikacjaOdrzucanie przeszczepów oraz leczenie chorób autoimmunologicznych pozostaje poważnym wyzwaniem w terapiach immunosupresyjnych. W związku z wysoką toksycznością polekową, obejmującą infekcje i choroby nowotworowe, a także niezadowalającą skutecznością leczenia, konieczne jest poszukiwanie nowych rozwiązań. Jednym z nich są modyfikacje strukturalne cząsteczki kwasu mykofenolowego (MPA) będącego substancją aktywną stosowanego klinicznie...
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System of gas detection by two-dimensional materials
PublikacjaThis thesis demonstrates light-assisted gas sensing by low-dimensional structures (graphene and two-dimensional metal chalcogenides). Studies on the prototype graphene-based resistive sensors show that the configuration of the device and the used substrate affect sensing properties. The sensors with Schottky diode configuration with graphene deposited directly on silicon exhibited high sensitivity and stability at lower voltage...
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TECHNICAL ASSESSMENT OF 120-YEAR-OLD RAILWAY RIVETED TRUSS BRIDGE
PublikacjaA 120-year-old railway truss bridge over the Bóbr River, Poland, is investigated in this paper from the mechanical and chemical properties of the materials by testing of old steel samples in a lab – through geodetic measurements, bathymetric measurements of the riverbed and dynamic measurements of bridge spans under service load – to the analysis of structural behaviour by finite-element modelling. The mechanical and chemical properties...
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Technological Considerations of Periodic Repair Works of Concrete Industrial Floors
PublikacjaConcrete floors are among the elements in construction facilities whose design requires engineering experience, workmanship requires the maintenance of a technological regime, while during their operation it is necessary to conduct periodic repairs. Concrete floors are most often used as working and communication space in industrial facilities, and very often they are also a functional element in objects that are immovable monuments....
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Tensile behavior evaluation of two-stage concrete using an innovative model optimization approach
PublikacjaTwo-stage concrete (TSC) is a sustainable mate- rial produced by incorporating coarse aggregates into formwork and filling the voids with a specially formulated grout mix. The significance of this study is to improve the predictive accuracy of TSC’s tensile strength, which is essential for optimizing its use in construction applications. To achieve this objective, novel and reliable predictive models were developed using advanced...
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Text analytics for co-creation in public sector organizations: a literature review-based research framework
PublikacjaThe public sector faces considerable challenges that stem from increasing external and internal demands, the need for diverse and complex services, and citizens’ lack of satisfaction and trust in public sector organisations (PSOs). An alternative to traditional public service delivery is the co-creation of public services. Data analytics has been fueled by the availability of immense amounts of data, including textual data, and...
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The effect of PV modules on temperature conditions of nearby power cables
PublikacjaThe highest permissible load of power cables (ampacity) depends strongly on the ambient temperature, which in the case of cables surrounded by free air is generally assumed to be 25°C. Considering the installation of photovoltaic (PV) modules, the thermal conditions for the cables connected to these modules may be very unfavorable. The cables are laid under the module and the space underneath it is heated by this module. The aim...
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The Mathematical Regularity Coefficient for Facade Patterns
PublikacjaThis article investigates whether the visual regularity of a building's facade can objectively be expressed by a numerical value. Grounded in universal neurobiological principles and modern digital image processing methods from mathematical and information theories, this study analyzes 245 architectural compositions using an interdisciplinary approach that combines perception, mathematics, programming, and architectural theory....
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The role of sand filler in enhancing the mechanical properties of polymethylmethacrylate composites
PublikacjaPolymethylmethacrylate (PMMA) is widely used in biomechanics and civil engineering for its properties. While various fillers have been studied to enhance mechanical properties of PMMA, the impact of sand as a filler has been less explored. This study investigates the effects of varying sand content on the mechanical properties and workability of PMMA-based resin composites, assessing their suitability for biomechanical applications....
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The strategies of nutrient removal compounds from wastewater by using aquatic plants in the Green deal implementation
PublikacjaThe aim of the study was to determine the efficiency of wastewater treatment from nitrogen compounds - ammonium, nitrite, nitrate, and phosphate - using Lemna minor and Spirogyra sp. in the context of the strategies toward Green Deal Implementation. Meanwhile, the various biological treatment methods of nutrients according to the value-added and application prospects were also discussed as a future solution in the Circular Economy...
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The tensile strength of different methods of anterior cruciate ligament graft end stitches in an animal model
PublikacjaBackground: There are several methods for stitching graft ends in anterior cruciate liga-ment reconstructive surgery. The tendon-suture construct should be able to withstand ten-sioning until the graft is stabilized with an implant. Methods: In this biomechanical study, 40 porcine lower extremity tendons ends were stitched with No. 2 suture, secured to the grips of the Zwick-Roell testing machine and tested for load at failure...
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Theoretical background of the operating parameters of the satellite working mechanism of the hydraulic positive displacement machine
PublikacjaThis article describes a method for determining the instantaneous geometric working volume of a satellite mechanism that is commonly used as a working mechanism in positive displacement machines (pump and motor). A new mathematical formula for calculating the instantaneous geometric working volume as a function of the angle of rotation of the shaft (rotor) has been proposed. For the satellite mechanism operating as a pump, the...
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Theoretical design of nanocatalysts based on (Fe2O3)n clusters for hydrogen production from ammonia
PublikacjaThe catalytic activities of high-spin small Fe(III) oxides have been investigated for efficient hydrogen production through ammonia decomposition, using the artificial force induced reaction method within the framework of density functional theory with the B3LYP hybrid exchange–correlation functional. Our results reveal that the adsorption free energy of NH3 on (Fe2O3 )n (n = 1–4) decreases with increasing cluster size up to n...